Thrashing-machine



(No Model.)

' J.-O. HOOVEN.

T'HRASHING MACHINE.

'No. 244,606. Patented July 19,1 81.

v a. I, I

V N, PETERS, Phmunw m m. Washiu on. 0. c.

ATTORNEY UNITED STATES PATENT OFFICE.

JOHN C. HOOVEN, OF HAMILTON, OlEIIO. Y i

TH'RASHlNG-MACHINE.

SPECIFICATION forming part of- Letters Patent No. 244,605, dated July 19, 1881. Application file d September 28, 1880. (No model.)

To all whom it may concern:

Be it known that I, JOHN G. HoovEN,of Hamilton, Butler county, Ohio, have invented certain new and .useful Improvements in Thrashing-Machines, of which the following is a specification.

My invention relates to devices forsecuring a more perfect and proper progression of the straw and grain through a thrasher, and to devices for effecting the ready adjustment of the throw of the tossing-fingers.

In the accompanying drawing, which represents a side view, partly in section, of my machine, A represents frame-work. B is the thrashing-cylinder.

O is a cleated deflecting-apron arranged over and before the cylinder, soas to'deflect downward any grain, &c., which maybe thrown upward. The apron (J is to be driven by any suitable arrangement of pulleys, and itshould be so located as to prevent grain, &e., being thrown forward of first tossers.

F is the vibrating slatted bottom section suspended by links It, and vibrated as usual.

G are the tos'sers. I provide the upper surface of the tossing-fingers G with ratchetshaped teeth H, which prevent retrogression of the straw as the section, 850., vibrates. The tosser-shafts have the usual outside levers, I, operated by means of fiexiblestraps J. t The vibrating motion pulls taut on these straps, and then produces an oscillating motion of the levers in an obvious manner. Moving the fixed e'nd'K of the strap nearer to the vertical plane of the lever I decreases the throw of the tossing mechanism in a manner well known.

To avoid the necessity of the separate adjustment of each strap, I arrange a bar, L, in proper supports alongside the machine and arrange it so as to adjust the stationary end of all the straps simultaneously. I show the bar L as adapted to be adjusted endwise bymeans of the cranked screw M, and thus move all the hitch-points K; but obviously the bar, instead of having alongitudin'al motion, may have a rotary motion, which may, by suitable mechanism, be converted into longitudinal motion of the hitch-points. Say, for instance, that the rod is a screw fixed longitudinally, and that each hitch-point K is a nut fixed against rota tion, such a device I would consider asimple equivalentof the specific mechanism shown for converting a single motion of the longitudinal rod L into an adjusting motion at several points, K.

N is the lower vibrating section, suspended by the links S, and vibrated in the usual man'- ner.

O is the usual perforated tail-board, which screens the issue of the lower section. This perforated tail-board form with transverse corrugations. This retards the motion of grain and gives it more time to find the perforations, While the long stuff is not materially retarded in its motion. I prefer to form the tail-piece O of perforated sheet metal corrugated in ratchet form, as shown, with the gentler slope set to meetthe coming matter. 0 may, of course, be of wood with corrugations upon its upper face. v

So far only as this present specification and patent are concerned, I make no claim to the oscillating fingers having ratchet-shaped teeth formed upon their upper surfaces. This feature I reserve as the subject of a future application.

I claim as my invention- 1. In a thrashing-machine, the combination, with a beating-cylinder and tossing-fingers arranged forward of said cylinder, of an inclined cleated deflecting apron arranged substantially as specified.

2. In thrashing-machines, the combination, with a vibrating section, oscillating tossingfingers, oscillating toss-shaft levers, and flexible straps attached to said levers, of an adjustable longitudinal bar and longitudinallyadjustable hitch-pieces attached to said straps and adapted to be simultaneously moved by said bar, substantially as set forth.

JOHN G. HOOVEN.

Witnesses:

J. W. SEE, ISRAEL WILLIAMS.

The tail-piece 1 

